#5170EE#5170EE

#5170EE is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.1% C 0.192 H 269.3°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#5170EE
RGB	rgb(81, 112, 238)
HSL	hsl(228, 82%, 63%)
HSV	hsv(228, 66%, 93%)
CMYK	cmyk(66%, 52.9%, 0%, 6.7%)
CIE-LAB	lab(51.28, 28.72, -66.95)
CIE-LCH	lch(51.28, 72.85, 293.22°)
OKLab	oklab(59.07% -0.0024 -0.1924)
OKLCH	oklch(59.07% 0.192 269.3)
XYZ	xyz(24.6149, 19.5084, 83.3406)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170EE #EECF51

analogous

#51BEEE #5170EE #8151EE

triadic

#5170EE #EE5170 #70EE51

tetradic

#5170EE #EE51BE #EECF51 #51EE81

square

#5170EE #EE51BE #EECF51 #51EE81

split-complementary

#5170EE #EE8151 #BEEE51

monochromatic

#1131B3 #1942E9 #5170EE #899EF3 #C1CCF9

Accessibility & contrast

On white

4.28

#5170EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#5170EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170EE

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170EE	#FFFFFF	#000000	##000000
##5170EE	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1682F2

Deuteranopia (green-blind)

#0073EB

Tritanopia (blue-blind)

#008EA4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5170ee;
/* rgb */ color: rgb(81, 112, 238);
/* oklch */ color: oklch(59.1% 0.192 269.3);

Tailwind

colors: {
  custom: {
    50: '#9298f4',
    500: '#5170ee',
    950: '#000000',
  },
}

SCSS

$custom: #5170ee;
$custom-light: #9298f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5170ee",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 238
  },
  "hsl": {
    "h": 228.153,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.59073,
    "c": 0.19243,
    "h": 269.3
  },
  "luminance": 0.19511
}

Semantic roles & 50–950 ramp

primary

#5170EE

secondary

#EADFB1

accent

#B407DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5170EE

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →